S
M
T
W
T
F
S
26
70°
56°
27
73°
52°
28
66°
51°
29
81°
59°
30
75°
57°
1
64°
52°
2
59°
41°
3
70°
46°
4
77°
52°
5
82°
59°
6
81°
62°
7
74°
46°
8
70°
45°
9
75°
49°
10
77°
58°
11
77°
58°
12
80°
57°
13
76°
58°
14
78°
53°
15
82°
61°
16
82°
60°
17
80°
61°
18
80°
61°
19
82°
60°
20
83°
62°
21
84°
62°
22
84°
63°
23
85°
63°
24
85°
62°
25
84°
63°
26
83°
64°
27
84°
63°
28
83°
64°
29
80°
64°
30
83°
63°
31
85°
64°
1
85°
64°
2
86°
65°
3
87°
65°
4
81°
61°
5
79°
60°
6
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fairfield
Fairfield's May 2026 forecast shows daily high temperatures ranging from 59° to 87°, with overnight lows between 41° and 65°. The average high for May is 80° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Fairfield. See also: June | July | August.
